206230686 has 16 divisors (see below), whose sum is σ = 415430400. Its totient is φ = 68248728.

The previous prime is 206230679. The next prime is 206230699. The reversal of 206230686 is 686032602.

206230686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122806 + ... + 124473.

It is an arithmetic number, because the mean of its divisors is an integer number (25964400).

Almost surely, 2^206230686 is an apocalyptic number.

206230686 is an abundant number, since it is smaller than the sum of its proper divisors (209199714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206230686 is a wasteful number, since it uses less digits than its factorization.

206230686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247423.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 206230686 is about 14360.7341734328. The cubic root of 206230686 is about 590.8144320784.

The spelling of 206230686 in words is "two hundred six million, two hundred thirty thousand, six hundred eighty-six".